01-04 Yamaha YZ250F YZ 250F WR 250F 80mm Big Bore Cylinder JE Piston Top End Kit com Q: Do these valves offer

Q: Do these valves offer better durability than OEM

Works on all Yamaha MT07

Q: Does this kit require machining

93210-15566-00

01-04 Yamaha YZ250F YZ 250F WR 250F 80mm Big Bore Cylinder JE Piston Top End Kit com Q: Do these valves offer21002 K01,C3059,247940,221797,M1050C,MX1050C,P400485100026,P400485160007,S5F08300006A,S5F08300006C,S5F08300006,20002,WPC140, PK1401, 4882M07700, W5921, C7905 EST, 20002,247937,94591 53114 00,P400485100026,P400485160007,5NL 11181 00 00, 5NL 11351 00 00, 5NL 14613 00 00,20002,HC92RH2010114,CC007,31. 2402, 4FM 12213 00, 4SV 12119 00 00, 4TV 12119 00 00, 20002, 221798, MX 09150 2, 5XC 11311 20 00, 5NL 11311 00 00, 5NL 11631 20 00, 5UL 11311 00 00, 5XC